Across
- 3. All life on Earth
- 7. Water temperature layer
- 10. Ice-related
- 11. Forest removal
- 12. Land becoming desert
- 15. Restoring forests
- 20. Cold-warm air boundary
- 21. Rising deep ocean water
- 22. Shore zone
- 23. River-related
- 25. Wind-formed
Down
- 1. All Earth’s water
- 2. Planting trees
- 4. Landmass-related
- 5. Open ocean zone
- 6. Between tropical and temperate
- 8. Frozen water regions
- 9. Ocean-related
- 13. Resource protection
- 14. Distinct ecological area
- 16. Surface land features
- 17. Ocean depth measurement
- 18. Shore-related
- 19. Deep ocean region
- 24. Rock-related